HIGH STRENGTH AQUEOUS GLYPHOSATE SALT CONCENTRATES AND METHODS

摘要

The present invention provides a high-strength glyphosate salt aqueous concentrate and a method for forming the concentrate. The method uses high purity and low water content glyphosate acid and primary amine preparations. The glyphosate acid and primary amine are reacted in the presence of a nominal amount of water. The method provides a concentrate with a very high concentration of biologically effective glyphosate salt, and a minimal amount of biologically ineffective glyphosate acid particulates. The minimal amount of particulates improves the viscosity of the concentrate to commercially acceptable levels, and the beneficial properties associated with the concentrate can be carried over into excipient-containing concentrates and application compositions that are formed from the high-strength glyphosate salt aqueous concentrate.